Machine for sewing buttons to fabrics.



'Nn. 7|2,l9l. Patented Oct. 28, 1902.

J. T. HOGAN.

MACHINE FUR SEWING BUTTONS T0 FABRICS.

(Application filed Dec. 18, 1899.)

(No Model.) 4 Sheets-Sheet I.

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MACHINE FOR SEWING BUTTONS T0 FABRICS.

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(Application filed. Dec. 18, 1899.)

(No Model.)

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' (Application filed Dec. 18, 1899.)

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mvgmon Jmeqm azo ms ATTORNEY Patented Oct. 28, I902.

J. T. HOGAN.

MACHINE FOR SEWING BUTTONS T0 FABRICS.

(Application flle d Dec. 18,':1'8993) 4 Shaats-$haat 4.

(No Model.)

-W w M ms ATTORNEY "UNITED STATES PATENT ()riuciz.

JAMES T. HOGAN, OF JERSEY CITY, NEW JERSEY, ASSIGNOR TO THE NATIONAL MACHINE COMPANY, OF NEW YORK, N.- Y., A CORPO- RATION OF NEW YORK.

MACHINE FOR SEWING BUTTONS TO FABRICS.

SPECIFICATION forming part of Letters Patent No. 712,191, dated October 28, 1902.

Application filed December 18,1899. Serial No. 740,642. (No model.)

To all whom it may concern:

Be it known that 1, JAMES T. HOGAN, a citizen of the United States, residing at Jersey City, in the county of Hudson and State of New Jersey, have invented a new and useful Machine for Sewing Buttons to Fabrics, of which the following is a specification.

My invention relates to machines for sewing buttons to fabrics, and has for its object to provide a machine which will automatically sew a button having four eyes by stitches between the diagonally opposite eyes, so as to resemble a hand-sewed button.

My invention consists in the construction and combination of elements hereinafter fully described and then pointed out in the claims.

In order that others may understand and use my improved mechanism, I will describe the same, referring by characters to the accompanying drawings, forming part of this specification, in which Figure l is a side elevation of a sewing-ma chine embodying my invention, showing the parts above the bed-plate. Fig. 2 is a plan view showing the button-holder and slideplate, the neck of the machine being in section. Fig. 3 is a section on the plane of the line 3 3 of Fig. 2. Fig. 4 is a section on the plane of the line 4 4 of Fig. 2. Fig. 5 is an inverted plan view of the mechanism for moving the button-holder and the shuttle mech-. anism. Fig. 6 is a sectional view of a form of cam which gives certain desired movements to the button-holder. Fig. 7 is a front View of the head of the machine with the plate removed. Fig. 8 is a detail view of a part of the button=holder, and Fig. 9 isa diagrammatic view showing the manner of laying the stitches in sewing a button according to my invention.

Similar characters of reference indicate similar parts on the several views.

A designates the bed-plate,and A the head, of the machine 3 A the main shaft, which may be-driven in any suitable manner; E the needle-bar, carrying the needle I), the saidbar being mounted in the frame B and reciprocated by the usual connection from the shaft A The frame B is pivoted on the studs b and the needle-bar is given a vibratory movement by the pitman B secured at one end to the said frame and at the other to the lever B. The lever B is pivoted at b and is rocked by means of a roller 1), attached thereto, engaging a cam B, which cam is rotated by gearing from the shaft A in a manner well known. The point of connection 1) between the pitman B and the lever B is adjustable along said lever to vary the amplitude of vibration of the needle.

E designates any suitable form of buttonholder adapted to securely hold the button during the sewing operation. Itis here shown as comprising a top part E and a lower part E the former being secured to bracket E hinged on the studs 8 of the slide-plate F. The slide-plate F moves between the guides F and F secured by screws to the bed-plate,

and its movement is of course imparted to the v button-holder.

G designates an arm pivoted to the bedplate at g. This arm carries a stud g,which 'On the hub H of said cam I mount a ratchetwheel I? and holds the same in engagement with said hub by a tap-screw t' and washer 1'. Motion is imparted to the ratchet-wheel I by means of a pawl d on the lever D which lever has a bearing on the hub H of the cam H. The lever D receives its motion from a lever D, pivoted at D to the baseof the machine, the said lever D being oscillated by a cam O on the shaft C, driven by suitable gearing from the main driving-shaft. The levers D and D are slotted at d and d and are adj ustably secured together by a screwbolt D A spring d holds the pawl 01 in engagement with the ratchet-wheel 1 The arm G is provided with a part G,which is slotted, as shown at 9 Through this slot extends a stud g having at its lower end a block, which latter engages the plate F through a groove f, formed by vertical walls f" and f The stud g by means of the nut 9 may be adjusted to any desired position to give a greater or less throw to the buttonholder.

In the particular construction shown the cam H has concentric portions or dwells at opposite points from h to h and from 7L2 to 71, to suspend the movement of the buttonholder for one stitch. Intermediate these dwells the cam H is of such construction as to impart a vibratory movement to the plate F and button-holder for as many diagonal stitches as may be desired and in a direction at right angles to the direction of vibration of the needle-bar.

The number of teeth on the ratchet-wheel 1 corresponds to the number of divisions of the cam H. In the present illustration of the invention the ratchet-wheel I has eighteen teeth and the cam H eighteen divisions, sixteen of which divisions are for moving the button-clamp and two for the dwells on opposite sides of the cam, making eighteen movements in all, corresponding with the number of teeth on the ratchet-wheel. By having this correspondence between the teeth of the ratchet-wheel I and the divisions of the cam H the sewing operation may begin at any point of the ratchet-wheel and the suspension of movement of the button -clamp will always occur at the proper point in the sewing operation.

The operation of the machine may be readily understood from the above description. The button is placed in the holder as shown in Fig. 8. By the simultaneous vibration of the needle through the pitman B and the button-holder by means of the cam H a set of stitches is sewed from the holes 1 to 2, Figs. 8 and 9. Assuming that the stud g to have started from the dwell h h, a vibratory movement will be imparted to the buttonholder until the said stud reaches the dwell 7& k on the opposite side of the cam. When the stud g has reached the last-named dwell, the vibratory movement of the button-holder willbe suspended; but as the vibratory movement of the needle continues one stitch will be laid from the hole 2 to the hole 3. The stud q then passes beyond the dwell b 72, and a set of stitches will be sewed between the holes 3 and 4, the machine being stopped by suitable means when the dwell h h is reached by the stud 7L2. In the cam II eight stitches will be sewed between the holes 1 and 2 and then eight stitches between the holes 3 and 4:; but it is evident that I may increase or decrease this number at will or I may vary the manner of sewing by alternating the set of stitches between the holes 1 and 2 and 3 and 4. Thus the cam H maybe so constructed as to sew two or more stitches between the holes 1 and 2 and then two or more stitches between the holes 3 and t, then back to the holes 1 and 2, and so on alternatively, this being efiected by having dwells located at proper intervals on the cam.

I of course provide the usual shuttle mechanism C and the tension 13.

What I claim as my invention, and desire to secure by Letters Patent, is

1. In a button-sewing machine, the combination with stitch-forming mechanism and a button-holder, of means for imparting a vibratory movement to the needle-bar, a cam and means actuated thereby to impart a vibratory movement to the button-holder in a plane at substantially a right angle to the plane of vibration of the needle-bar and simultaneous with the vibration of the needlebar, said cam having dwells at opposite points to suspend the vibratory movement of the button-holder wherebya button may be sewed with lines of stitches crossing each other, substantially as described.

2. In a button-sewing machine, the combination of a stitch-forming mechanism and a button-holder, of means for imparting a vibratory movement to the needle-bar, and means comprising a cam to impart a vibratory movement to the button-holderin a plane at substantially a right angle to the plane of vibration of the needle-bar and simultaneously therewith, said cam having a plurality of dwells to suspend the motions of said button-holder during the vibration of the needlebar, substantially as described.

3. In a button-sewing machine, the combination with stitch-forming mechanism and a button-holder, of means for imparting a vibratory movement to the needle-bar, means to impart a vibratory movement to the button-holder in a plane at substantially a right angle to the plane of vibration of the needlebar and simultaneously therewith, and to suspend the motions of said button-holder during the vibration of the needle-bar, said means comprising a cam and a ratchet-wheel, said ratchet-Wheel having its teeth corresponding in number to the divisions of said cam, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JAMES T. HOGAN.

Witnesses:

GEO. E. CRUSE, CHARLES S. JONES. 

